using System;
using System.Linq;
using System.Collections.Generic;

namespace test20190423
{
    class Program
    {
        static void Main(string[] args)
        {
            var a = Console.ReadLine();
            var b = Console.ReadLine();
            Console.WriteLine(a.ToCharArray().Except(b).Count() == 0 ? "YES" : "NO");
            Console.ReadLine();

        }
    }
}